450 CARBONIFEROUS ROCKS INT CUMB. CO. — LOGAN & FLETCHER. 



Ft. In. 



Gray argillo-arenaceous shale, with stigmarice (under- 

 day) • 1 6 



Gray soft flaggy sandstone 3 6 



Gray argillaceous shale, with stigmarice (under day) . . 3 

 Gray arenaceous shale, with stigmarice (underday) ... 3 

 Gray argillo-arenaceous shale, witth stigmarice (under- 

 doty) 4 



Gray soft flaggy sandstone, with stigmariw at the top 



(understone) 3 



Fine gray argillo-arenaceous shale 4 



Greenish gray sandstone 1 



Dark gray argillaceous shale 6 



19. Carbonaceous shale 4 



Bituminous limestone, with shells and fish 



scales 2 6 



Coal 1 



6 7 



Gray argillo-arenaceous shale, with stigmarice (under- 



day) 2 6 



Greenish gray sandstone 6 



Gray argillaceous shale 12 



20. Black bituminous shale 1 



Black bituminous limestone, with shells 1 6 



Coal 6 



3 



Gray argillo-arenaceous shale, with stigmarice ficoides 



(underday) 2 6 



Greenish gray sandstone 4 



Gray argillaceous shale . 1 6 



(From the top of the succeeding bed springs an up- 

 right sigillaria 10 inches in diameter; 2 feet, 6 

 inches of it are visible.) 



21. Coal and carbonaceous shale 3 



Gray argillaceous shale, with stigmarice 



(underday) 1 6 



